Defensive publication

ABSTRACT

IN FROTH FLOTATION METHODS FOR CONCENTRATING MOLYBDENUM BEARING ORE BY SUBJECTING AN AQUEOUS PULP OF SAID ORE TO FORTH FLOTATION, THE IMPROVEMENT COMPRISING THE USE OF FROM ABOUT 0.01 TO ABOUT 0.20 LB. PER TON OF ORE OF AN ALCOHOLIC COMPOUND SELECTED FROM THE GROUP CON SISTING OF ALCOHOLS HAVING THR GENERAL FORMULA   R-CHOH-R&#39;&#39;   WHEREIN R IS A HYDROGEN OR AN ALKYL GROUP CONTAINING FROM 1 TO ABOUT 8 CARBON ATOMS, AND ALTAINING FROM 1 TO ABOUT 8 CARBON ATOMS AND R PLUS R&#39;&#39; CONTAIN FROM ABOUT 4 TO ABOUT 8 CARBON ATOMS: AND ALKYL PHENYL ALCOHOL CONTAINING FROM ABOUT 7 TO ABOUT 9 CARBON ATOMS AS A COLLECTOR-FROTHER. THE ALCOHOLIC COMPOUNDS ARE SHOWN TO BE EFFECTIVE IN THE RECOVERY OF MOLYBDENUM ORES WITHOUT THE USE OF COLLECTORS. IN COMPARISONS OF ALCOHOLIC COLLECTOR-FROTHERS ALONE WITH ALCOHOLIC COLLECTOR-FROTHERS PLUS CONVENTIONAL COLLECTORS IT IS SHOWN THAT IMROVED RECOVERIE ARE ACHIEVED WITH THE ALCOHOLIC COLLECTOR-FROTHERS ALONE.

DEFENSIVE PUBLICATION- UNITED STATES PATENT OFFICE Published at therequest of the applicant or owner in accordance with the Notice ofDec.,16, 1969, 869 O.G. 687. The abstracts of Defensive lublicationapplications are identified by distinctly numbered series and arearranged chronologically. The heading 0! each abstract indicates thenumber of pages of specification, including claims and sheets ofdrawings contained in the application as'origlnally filed. The files ofthese applications are available to the public for inspection andreproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to themerits of alleged invention. The Patent Ofllce makes no assertion as tothe novelty of the disclosed subject matter.

PUBLISHED MARCH 5, 1974:

T920,003 ALCOHOLIC COMPOUNDS AS MOLYBDENUM COLLECTOR FROTHERS William L.Groves, Jr., and Tommie G. Edwards, Ponca City, Okla., and James A.Wingrave, Austin, Tex., asfilignors to Continental Oil Company, PoncaCity, 0 a.

Continuation of abandoned application Ser. No. 105,077,

Jan. 8, 1971. This application Sept. 29, 1972, Ser- R-CHOH-R' wherein Ris a hydrogen or an alkyl group containing from 1 to about 7 carbonatoms, R is an alkyl group containing from 1 to about 8 carbon atoms andR plus R contain from about 4 to about 8 carbon atoms; and alkyl phenylalcohols containing from about 7 to about 9 carbon atoms as acollcctor-frother. The alcoholic compounds are shown to be effective inthe recovery of molybdenum ores without the use of collectors. Incomparisons of alcoholic collcctor-frothcrs alone with alcoholiccollector-frothers plus conventional collectors it is shown thatimproved recoveries are achieved with the alcoholic collector-frothersalone.

